Extract NotificationBuilderBase for holding the arguments.

chrome/android/java/src/org/chromium/chrome/browser/notifications/StandardNotificationBuilder.java

 // Copyright 2015 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 package org.chromium.chrome.browser.notifications;
 
 import android.app.Notification;
-import android.app.PendingIntent;
 import android.content.Context;
-import android.graphics.Bitmap;
 import android.support.v4.app.NotificationCompat;
+import android.support.v4.app.NotificationCompat.Action;
 
 /**
  * Builds a notification using the given inputs. Relies on NotificationCompat and
  * NotificationCompat.BigTextStyle to provide a standard layout.
  */
-public class StandardNotificationBuilder implements NotificationBuilder {
-    private final NotificationCompat.Builder mBuilder;
+public class StandardNotificationBuilder extends NotificationBuilderBase {
+    private final Context mContext;
 
     public StandardNotificationBuilder(Context context) {
-        mBuilder = new NotificationCompat.Builder(context);
+        mContext = context;
     }
 
     @Override
     public Notification build() {
-        return mBuilder.build();
-    }
-
-    @Override
-    public NotificationBuilder setTitle(CharSequence title) {
-        mBuilder.setContentTitle(title);
-        return this;
-    }
-
-    @Override
-    public NotificationBuilder setBody(CharSequence body) {
-        mBuilder.setContentText(body).setStyle(new NotificationCompat.BigTextStyle().bigText(body));
-        return this;
-    }
-
-    @Override
-    public NotificationBuilder setOrigin(CharSequence origin) {
-        mBuilder.setSubText(origin);
-        return this;
-    }
-
-    @Override
-    public NotificationBuilder setTicker(CharSequence tickerText) {
-        mBuilder.setTicker(tickerText);
-        return this;
-    }
-
-    @Override
-    public NotificationBuilder setLargeIcon(Bitmap icon) {
-        mBuilder.setLargeIcon(icon);
-        return this;
-    }
-
-    @Override
-    public NotificationBuilder setSmallIcon(int iconId) {
-        mBuilder.setSmallIcon(iconId);
-        return this;
-    }
-
-    @Override
-    public NotificationBuilder setContentIntent(PendingIntent intent) {
-        mBuilder.setContentIntent(intent);
-        return this;
-    }
-
-    @Override
-    public NotificationBuilder setDeleteIntent(PendingIntent intent) {
-        mBuilder.setDeleteIntent(intent);
-        return this;
-    }
-
-    @Override
-    public NotificationBuilder addAction(int iconId, CharSequence title, PendingIntent intent) {
-        mBuilder.addAction(iconId, title, intent);
-        return this;
-    }
-
-    @Override
-    public NotificationBuilder addSettingsAction(
-            int iconId, CharSequence title, PendingIntent intent) {
-        return addAction(iconId, title, intent);
-    }
-
-    @Override
-    public NotificationBuilder setDefaults(int defaults) {
-        mBuilder.setDefaults(defaults);
-        return this;
-    }
-
-    @Override
-    public NotificationBuilder setVibrate(long[] pattern) {
-        mBuilder.setVibrate(pattern);
-        return this;
+        NotificationCompat.Builder builder = new NotificationCompat.Builder(mContext);

[Peter Beverloo, 2016/01/27 11:36:03]

Something to consider: Perhaps the base could hold an instance of the
NotificationCompat.Builder, and the setters could update those directly as well
(and not store the memory locally where we can avoid it).

A number of these calls (26-42) are duplicated too.

[Michael van Ouwerkerk, 2016/01/27 15:04:25]

I considered this, but I worry that sprinkling usage of the builder across
multiple files would hurt readability. Perhaps something to reconsider once the
additional logic goes in for handling action icons.

+        builder.setContentTitle(mTitle);
+        builder.setContentText(mBody).setStyle(
+                new NotificationCompat.BigTextStyle().bigText(mBody));
+        builder.setSubText(mOrigin);
+        builder.setTicker(mTickerText);
+        builder.setLargeIcon(mLargeIcon);
+        builder.setSmallIcon(mSmallIconId);
+        builder.setContentIntent(mContentIntent);
+        builder.setDeleteIntent(mDeleteIntent);
+        for (Action action : mActions) {
+            builder.addAction(action);
+        }
+        if (mSettingsAction != null) {
+            builder.addAction(mSettingsAction);
+        }
+        builder.setDefaults(mDefaults);
+        builder.setVibrate(mVibratePattern);
+        return builder.build();
     }
 }